H01G 4/18
Of synthetic material
Official title: of synthetic material, e.g. derivatives of cellulose (H01G4/16 takes precedence)
H01G4/18 (Of synthetic material) appears on 467 US grants and 489 published applications in this corpus.
Search patents in H01G- Granted patents
- 467
- Published applications
- 489
- Assignees
- 237
- Inventors
- 1,070
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 2 |
| 2002 | 9 | 5 |
| 2003 | 8 | 9 |
| 2004 | 1 | 6 |
| 2005 | 3 | 4 |
| 2006 | 7 | 5 |
| 2007 | 5 | 8 |
| 2008 | 1 | 7 |
| 2009 | 1 | 6 |
| 2010 | 4 | 19 |
| 2011 | 5 | 15 |
| 2012 | 11 | 22 |
| 2013 | 12 | 13 |
| 2014 | 10 | 26 |
| 2015 | 13 | 21 |
| 2016 | 21 | 27 |
| 2017 | 25 | 45 |
| 2018 | 31 | 44 |
| 2019 | 27 | 41 |
| 2020 | 41 | 25 |
| 2021 | 19 | 22 |
| 2022 | 21 | 19 |
| 2023 | 17 | 39 |
| 2024 | 24 | 21 |
| 2025 | 26 | 20 |
| 2026 | 17 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process of manufacturing a dielectric for a capacitor and process of manufacturing a capacitor and capacitor22 Sep 2026US 12,744,160 B2Polymer Competence Center Leoben GmbH
- Capacitor having electrode structure of high voltage resistance for electric vehicles9 Jun 2026US 12,651,700 B2Samhwa Capacitor Co., Ltd.
- Metallized polypropylene film19 May 2026US 12,629,921 B2Oji Holdings Corporation
- Biaxially orientated film containing cyclic olefin polymers and alpha-olefin polymers, method for its production, as well as its use in a capacitor19 May 2026US 12,630,678 B1BrüCkner Maschinenbau GmbH & Co. KG
- Resin composition and molded article19 May 2026US 12,630,700 B2Mitsui Chemicals, Inc.
- Dielectric film and method for manufacturing the same, metalized film and method for manufacturing the same, film capacitor and method for manufacturing the same, inverter, and vehicle1 Oct 2026US 2026/0302067 A1Panasonic Intellectual Property Management Co., Ltd.
- Multilayer electronic component20 Aug 2026US 2026/0245795 A1Samsung Electro-Mechanics Co., Ltd.
- Reconfigurable swcnt ferroelectric field-effect transistor arrays30 Jul 2026US 2026/0217946 A1
- Capacitor23 Jul 2026US 2026/0213070 A1Nichicon Corporation
- Capacitor16 Jul 2026US 2026/0204487 A1
Most cited
By later US patents
- Laminates of polymers having perfluorocyclobutane rings and polymers containing perfluorocyclobutane rings203US 5,246,782 AThe Dow Chemical Company · 1993
- Laminates of polymer shaving perfluorocyclobutane rings100US 5,409,777 AThe Dow Chemical Company · 1995
- High energy density capacitor100US 6,092,269 ASigma Laboratories of Arizona, Inc. · 2000
- Metallization film capacitor having divided electrode with fuse88US 8,310,802 B2Panasonic Corporation · 2012
- Metallized film capacitor and case mold type capacitor including same84US 8,559,161 B2Panasonic Corporation · 2013